def get_history(self, state, dict_, passive=attributes.PASSIVE_OFF):
"""Provided for userland code that uses attributes.get_history()."""
added = []
deleted = []
has_history = False
for prop in self.props:
key = prop.key
hist = state.manager[key].impl.get_history(state, dict_)
if hist.has_changes():
has_history = True
non_deleted = hist.non_deleted()
if non_deleted:
added.extend(non_deleted)
else:
added.append(None)
if hist.deleted:
deleted.extend(hist.deleted)
else:
deleted.append(None)
if has_history:
return attributes.History([self.composite_class(*added)], (),
[self.composite_class(*deleted)])
else:
return attributes.History((), [self.composite_class(*added)], ())
def get_history(self, state, passive=False):
c = self._get_collection_history(state, passive)
return attributes.History(c.added_items, c.unchanged_items, c.deleted_items)
def get_history(self, state, dict_, passive=attributes.PASSIVE_OFF):
c = self._get_collection_history(state, passive)
return attributes.History(c.added_items, c.unchanged_items,
c.deleted_items)